Puncture-proof tire.



W. MoKAY. PUNGTURE PROOF TIRE. 42211011171011 FILED MAY 10, 1911. RENEWED MAY 24, 1912.

Patehted D8G.24,1912.

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INVENTOR 2 1/I/Q/Lca ATTORNEYS To all uihom it may concern:

, UNITED STATES PATENT OFFICE.

WILLIAM MOKAY, OF NEW YORK, N. Y., ASSIGNOR OE ONE-TWEN'IIETH TO IRWIN G.

' BURTON, OF NEW YORK, N. Y.

PUNCTURE-PROOF TIRE.

Specification of Letters Patent.

Patented Dec. 24, 1912.

Application filed May 16, 1911, Serial Ri /627,475. Renewed May 24, 1912. Serial No. 699,538.

Be it knownlthat 1, WILLIAM MoKAY, a subject of the King of Great Britain, and a resident of 'the city of New York, borough of Manhattan, in the county and'State of New York, have invented a new and Improved Puncture-Proof Tire, of which thefollowing is a full, clear, and exact description.

The invention relates to tires vhaving an inner inflatable tube, and its object is to pro vide .a new and improved puncture-prooftire which is simple and durable in construction cheap to manufacture, and arranged to permit convenient assembling of the parts, and to protect the inner tube against being punctured-by tacks or the like, at the same time producing the desired cushioning efiect-of the ordinary inner tube tire.

For the purpose mentioned, use is made of a tread, an inner tube inclosed in a shoe.

and separators interposed between the said shoe and tread.

A practical embodiment of the invention is represented in the accompanving drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in b'othtyiews.

Figure 1 is a cross section of the tire; and

.Fig. 2 is a sectional side elevation of the same.

A metallic casing A is secured to the wheel rim B by transverse bolts C, and into the outer open portion of the said metallic casing A fits a rubber shoe or covering D,

-. inclosing an-inner inflatable tube E to give .The outer peripheral face of the shoe D rests.

the desired cushioning effect to the tire.

on spaced metallic separators F, engaging with their outer faces the'inner surface of a tread G, of rubber or other flexible material, the tread G being segmental in cross section and terminating at the sides in hooks G adapt'e'd"filio'ok onto-corresponding hooks A formed on the outer edges of the sides A of the casing-A, as will be readily understood by' reference to Fig, 1. The separators F are preferably hollow or tubu- 1m; in a longitudinal direction, and each is provided with a transverse partition F engaged at or near its middle by a chain H,

' #which serves to hold the separators spaced 'apart at the same time flexibly connecting the separators with each other. en 0Q to allow each separator to act independently of the adjacent one when under a load.

In order to prevent lateral displacement of the separators F, each is provided in its outer face with a longitudinally-extending recess F into which fits a correspondinglyshaped rib G formed integrally on the inner surface of the tread G, the said rib G holding'the separators F against transverse movement.

In order to prevent longitudinal shifting of the separators F and their connecting chain H, use is made of yokes I connected with links intermediate adiacent separators F, and attached to the books A of the easing A, as plainly indicated in the drawings.

The joints between the hooks G, A of the tread G and easing A are covered exteriorly, by metallic rings J fastened by screws or other fastening devices to the sides A of the casing A.

By the use of the separators F, the tread G is separated from the shoe D and the inner tube E a suflicient distance so that tacks, pins or the like passing through the tread G are not liable'to reach the shoe D and the inner tube E, and hence the danger of puncturing the inner tube is reduced to a minimum,

The shoe D is split and the split portion is enlarged to fit' snugly into the casing A, as plainly indicatedin Fig. 1.

The casing A may be made in sections fastened together so as tol'permit conv nient placing of the shoe D and the inner t ibe E in position in the casing when assembling the parts.

The puncture-proof tire is formed of comparatively few parts, which can be readily assembled, and convenient access can be had to the parts by removing one of the rings J and unhooking the corresponding side of the tread G.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A puncture-proof tire, comprising an inflatable inner tube, a shoe for the same, a

tread, separators interposed betw'een the said shoe and the said tread, and a flexible connection for the said separators to hold the same permanently spaced apart in the tire.

2. A puncture-proofy'tire, comprising an X Y v V inner inflatable tube, a split shoe inolosing the said tube, a flexible tread, metallic separators interposed between the said shoe and i posed between the'said shoe and the said" tread, and spaced apart, a chain connecting the separators in a circular series, and supporting-members engaging the chain to prevent longitudinal movement thereof.

4. it puncture-proof tire, comprising an inner inflatable tube, a shoe inclosing the said tube, a flexible tread, separators interposed betweemthe saidshoe and the said tread, the said separators being spaced apart and made hollow, each separator having an interior transverse partition, :1 chain engaging the said partitions to hold the separators spaced apart,,and connections for hold-, ing said chain and said separators.

5. A puncture-proof tire, comprising a metallic casing having sides, a rubber shoe fitting into the said casing, an inner tube in the said shoe, a rubber tread secured to the said casing sides, spaced metallic separators interposed between the said shoe and the said-tread, a chain connecting the separators With each. other, and yo-kes held on the said casing sides and engaging the said chain to hold the latter and the separators against longitudinal movement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

WILLIAM MoKA Y. Witnesses THE-0. G. HosrER,

PHILIP D. RoLLHAUs.

Qopies of this patent may be obtainedfor five cents each, by addressing the Commissioner of Patents Washington, D. C. 

